CDLL5238

Single Zener Diodes Overview

The CDLL5238 is a single Zener diode manufactured by Microchip Technology, designed for surface mount applications. It features a nominal Zener voltage of 8.7 V with a tolerance of ±10%. The device operates within an extended temperature range from -65°C to +175°C and utilizes the DO-213AB MELF package. Key electrical characteristics include a maximum reverse leakage current of 3 µA at 6.5 V and a Zener impedance of 8 Ohms. The forward voltage is specified as 1.1 V at a forward current of 200 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in a compact leadless surface mount package suitable for automated assembly.
• Engineered for high-temperature reliability with an operating junction temperature range extending up to +175°C.
• Incorporates double plug construction with metallurgically bonded terminals for robust mechanical integrity.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in sensitive electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific suffix designation when ordering, as variants such as CDLL5238A or CDLL5238C may exist with identical nominal parameters but different packaging configurations like bulk or reel. Confirm RoHS compliance status directly with the manufacturer, as historical data indicates some versions may not meet current environmental standards. Ensure the selected package matches the PCB footprint requirements for the DO-213AB form factor.

Single Zener Diodes Selection Notes

Select this component when a fixed 8.7 V reference is required in space-constrained designs. The low leakage current makes it suitable for high-impedance nodes. Consider the thermal derating specifications if operation exceeds +125°C. Verify that the input voltage does not exceed the maximum ratings defined in the official datasheet to prevent device failure.

Single Zener Diodes Part Context

This part belongs to the CDLL52xx series of leadless Zener diodes produced by Microchip Technology. These devices are characterized by their small physical size and high-temperature capability, distinguishing them from standard axial-lead counterparts. The series supports various voltage values within the 5.1 V to 8.7 V range, offering designers flexibility for different reference needs.

Single Zener Diodes Replacement Considerations

Direct substitutes include CDLL5238A and CDLL5238C, which share the same 8.7 V nominal voltage and DO-213AB package. Verify that any replacement variant maintains the required ±10% tolerance and thermal performance specifications before integration into the design.